diff --git a/include/tins/hw_address.h b/include/tins/hw_address.h
index c0a24f7..1562f29 100644
--- a/include/tins/hw_address.h
+++ b/include/tins/hw_address.h
@@ -35,6 +35,7 @@
 #include <string>
 #include <cstring>
 #include "cxxstd.h"
+#include "macros.h"
 #if TINS_IS_CXX11
     // std::hash
     #include <memory>
@@ -47,15 +48,16 @@ namespace Internals {
 /**
  * \cond
  */
-std::string hw_address_to_string(const uint8_t* ptr, size_t count);
+TINS_API std::string hw_address_to_string(const uint8_t* ptr, size_t count);
 
-void string_to_hw_address(const std::string& hw_addr, uint8_t* output, size_t output_size);
+TINS_API void string_to_hw_address(const std::string& hw_addr, uint8_t* output,
+                                   size_t output_size);
 
-bool hw_address_equal_compare(const uint8_t* start1, const uint8_t* end1,
-                              const uint8_t* start2);
+TINS_API bool hw_address_equal_compare(const uint8_t* start1, const uint8_t* end1,
+                                      const uint8_t* start2);
 
-bool hw_address_lt_compare(const uint8_t* start1, const uint8_t* end1,
-                           const uint8_t* start2, const uint8_t* end2);
+TINS_API bool hw_address_lt_compare(const uint8_t* start1, const uint8_t* end1,
+                                    const uint8_t* start2, const uint8_t* end2);
 
 /**
  * \endcond
diff --git a/include/tins/ip_address.h b/include/tins/ip_address.h
index 6e5f9c5..e16387c 100644
--- a/include/tins/ip_address.h
+++ b/include/tins/ip_address.h
@@ -204,7 +204,7 @@ private:
 namespace std {
 
 template<>
-struct hash<Tins::IPv4Address> {
+TINS_API struct hash<Tins::IPv4Address> {
     size_t operator()(const Tins::IPv4Address& addr) const;
 };
 
diff --git a/include/tins/ipv6_address.h b/include/tins/ipv6_address.h
index 6013635..454b9f7 100644
--- a/include/tins/ipv6_address.h
+++ b/include/tins/ipv6_address.h
@@ -203,7 +203,7 @@ public:
      * \param addr The parameter to be written.
      * \return std::ostream& pointing to the os parameter.
      */
-    friend std::ostream& operator<<(std::ostream& os, const IPv6Address& addr);
+    TINS_API friend std::ostream& operator<<(std::ostream& os, const IPv6Address& addr);
 
     /**
      * Applies a mask to an address
@@ -222,7 +222,7 @@ private:
 namespace std {
 
 template<>
-struct hash<Tins::IPv6Address> {
+TINS_API struct hash<Tins::IPv6Address> {
     size_t operator()(const Tins::IPv6Address& addr) const;
 };